I want a desktop Point of sale application to be done in C# and MYSQL Server 2012 Express Edition. It will be used by a grocery Store of 2 or more Cashiers. All the data entry of Cashiers would be done all by keyboard and barcode scanner, mouse input is completely discouraged because in a grocery store, fast transaction is necessary. A customer name is required on the first entry before selecting items to be sold, barcode is used as major input and Items will be selected also if the item has no barcode, the user will just type a few characters and the items based on that character will appear as selections either the keyword is in the first, middle and last the program should bring out all the items that contain the keyword. Inventories will be updated upon saving and paying of sold items, if the customer will use cheuqe as payment rather than cash, the cashier should enter in a new window that cheque details, the application should also accept refunds and inventories will be updated. all the other requirements are all the same with other regular point of sale applications. Thanks very much!